Hints
Step 1
Step 2
Very minor hint
Look up after solving step 1 and getting the second upgrade.
Major hint
The code for the Caesar Cipher is 7.
Step 3
Minor hint
Turn on all the lights, it will reveal an elevator code to the roof.
Step 4
Minor hint
Use the code you can spot from the roof (use the code from step 3 to access the roof) to open the large VAB door.
Step 5
Minor hint
Use the code you can spot from the roof to open the large VAB door. You can use the code "0000" to get back to the ground floor.
Step 6
Minor hint
Now with all upgrades, you can see the moon.
Major hint
The code to the launch pad is the name of the space station.
Step 7
Minor hint
The two refueling stations have pipes that need to be reconnected into a closed system.